Mining Publication: Approved Electric Lamps for Miners
This bulletin describes the development of a number of types of lamps that meet the requirements of the underground mining industry and discusses in detail the features and qualities of these lamps, which in November, 1916, were being put into use by mine operators in this country at the rate of about 2400 a week.
NIOSH/USBM Numbered PublicationJuly - 1917
NIOSHTIC2 Number: 20036725
U.S. Department of the Interior, Bureau of Mines. Bulletin 131, 1917; :1-59